ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

1

Electronic Resource

Individualistic responses of bird species to environmental change (1995)

Taper, Mark L. ; Böhning-Gaese, Katrin ; Brown, James H.

Springer

Oecologia 101 (1995), S. 478-486

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ISSN: 1432-1939

Keywords: Community dynamics ; Insectivorous birds ; Large-scale environmental variation ; Long-term population trends ; North American Breeding ; Bird Survey

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract We investigated how the population dynamics of the same bird species varied in different environments, and how the population dynamics of different species varied in the same environment, by calculating long-term population trends for 59 insectivorous songbird species in 22 regions or strata of eastern and central North America using data from the North American Breeding Bird Survey. Of the 47 species that occurred in more than one region 77% increased in some regions and declined in others. Of the 22 regions 91% had some species that increased and others that decreased. There were only slightly more significant correlations between strata in species trends and between species for stratum trends than would be expected by chance. Because of nonlinearities in the data, the actual patterns of population fluctuations of the same species in different regions and of different species in the same region were even more heterogeneous than suggested by our analyses of linear trends. We conclude that these bird species respond to spatial and temporal variation in their environment in a very individualistic fashion. These individualistic responses show that the extrapolation of population trends gained from a few local studies to a larger spatial scale, and the use of a few indicator species to monitor the status of a broader community, are suspect.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00329427

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2

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Floral color change and the attraction of insect pollinators in lungwort (Pulmonaria collina) (1999)

Oberrath, R. ; Böhning-Gaese, Katrin

Springer

Oecologia 121 (1999), S. 383-391

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ISSN: 1432-1939

Keywords: Key words Flower number ; Flower visit ; Foraging behavior ; Pollen transfer ; Pollination

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract We studied the effect of floral color change on long- and short-distance attraction of insect pollinators to the herb lungwort, Pulmonaria collina. Lungwort flowers change color with age from red to blue. Young red flowers had a significantly greater pollen and nectar reward and were significantly more often unpollinated than old blue ones. Red and blue flowers both influenced long-distance attractiveness of plants, defined as the number of insect approaches towards an individual plant. After reaching a plant, flower visitors preferred to visit young red flowers. Therefore, short-distance attractiveness, defined as the number of flowers visited successively on an individual plant, was influenced mainly by the number of young red flowers. The co-occurrence of the change in reproductive ability, in amount of reward, and in flower color enabled lungwort plants to direct pollinators to reproductive, highly rewarding red flowers. The data suggest that by maintaining changed flowers lungwort plants can increase their long-distance attraction and simultaneously enhance the probability of flower visits to pre-changed flowers. Thus, we propose floral color change as a mechanism that can increase the efficiency of pollen transfer to enhance plant fitness.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s004420050943

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3

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Dynamik von Zugvogelgemeinschaften in verschiedenen Gebieten und Zeiträumen (1995)

Böhning-Gaese, Katrin

Springer

Journal of ornithology 136 (1995), S. 149-158

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ISSN: 1439-0361

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract The dynamics of migratory avian communities were compared over different spatial and temporal scales using data from the Mettnau-Reit-Illmitz migratory bird trapping program. Bird species that had similar year-to-year population fluctuations did not have similar long-term population trends. Species that had similar population dynamics at one trapping station only rarely exhibited similar dynamics at any of the other trapping stations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01651236

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4

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Ursachen für Bestandseinbußen europäischer Singvögel: eine Analyse der Fangdaten des Mettnau-Reit-Illmitz-Programms (1992)

Böhning-Gaese, Katrin

Springer

Journal of ornithology 133 (1992), S. 413-425

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ISSN: 1439-0361

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Description / Table of Contents: Summary Trapping data of migratory birds collected 1974–1983 by the Mettnau-Reit-Illmitz-Program of the Vogelwarte Radolfzell were analyzed to understand the causes for population declines of European songbirds. Changes in breeding and wintering habitat were significantly correlated with population trends of the 34 species of songbirds; diet during the breeding season, migratory status and wintering area were not. Population declines of species inhabiting wetlands, open countryside and savanna were contrasted by stable populations of species inhabiting settlements and forests. As forests declined severely in the wintering regions of Africa the population declines could be attributed to habitat destruction on the breeding grounds.

Notes: Zusammenfassung Um Ursachen für die Bestandseinbußen europäischer Singvögel herauszufinden, wurden die Zugvogel-Fangdaten des 1974–1983 von der Vogelwarte Radolfzell durchgeführten Mettnau-Reit-Illmitz-Programms analysiert. Entwicklungen im Brut- und Winterhabitat waren signifikant mit den Bestandsentwicklungen der 34 Singvogelarten korreliert, Ernährung während der Brutzeit, Zugverhalten und Überwinterungsregion nicht. Bestandseinbrüche bei den Vögeln von Feuchtgebieten, offener Kulturlandschaft und Savanne standen ausgeglichenen Beständen von Siedlungs- und Waldarten gegenüber. Da Wälder in den Überwinterungsgebieten in Afrika überdurchschnittlich abnahmen, müßten die Bestandseinbußen durch Lebensraumzerstörung in den Brutgebieten verursacht worden sein.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01640469

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5

Electronic Resource

Zur Nahrungsökologie des Weißstorchs (Ciconia ciconia) in Oberschwaben: Beobachtungen an zwei Paaren (1992)

Böhning-Gaese, Katrin

Springer

Journal of ornithology 133 (1992), S. 61-71

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ISSN: 1439-0361

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Description / Table of Contents: Summary The foraging behaviour of two pairs of White storks was recorded by rigorous observations in the field. One pair of storks, with many meadows in the vicinity of their nest and a small clutch size, spent much time resting throughout the breeding season. They searched for food within a range of 1.5 km from the nest and used the profitable mouse hunting method almost exclusively. When rearing its young, the other pair of storks, with few meadows in the vicinity of their nest and a relatively large clutch size, used a large part of the daylight period for foraging. Thus they expanded their range up to 3.8 km from the nest. When earthworms were abundant, they also used the unprofitable earthworm hunting method within short distances from the nest. The daily energy intake per stork during incubation was approximately 2600 kJ, and approximately 8850 kJ when rearing young.

Notes: Zusammenfassung Das Nahrungssuchverhalten zweier Weißstorch-Paare wurde durch systematische Beobachtung der Störche im Gelände erfaßt. Das Storchenpaar mit gutem Grünlandangebot in der Nähe des Nestes und kleiner Jungenzahl hatte während der ganzen Brutsaison viel „Freizeit”. Es suchte in einem Entfernungsbereich bis 1,5 km vom Nest Futter und wandte fast ausschließlich die profitable Mäusejagd an. Das Storchenpaar mit schlechtem Grünlandangebot in der Nähe des Nestes und relative großer Jungenzahl nutzte während der Jungenaufzucht einen Großteil der Helligkeitsperiode zur Futtersuche. Es dehnte dabei seinen Entfernungsbereich bis 3,8 km vom Nest aus und ging bei gutem Regenwurmangebot in nahen Entfernungen zum Nest auch der unprofitablen Regenwurmjagd nach. Die Nahrungsaufnahme der Störche betrug während der Brutphase etwa 2600 kJ, während der Aufzucht von ein bis zwei Jungen ungefähr 8850 kJ pro Storch und Tag.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01640040

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6

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Constraints on dispersal and the evolution of the avifauna of the Northern Hemisphere (1998)

Böhning-Gaese, Katrin ; González-Guzmán, Laura I. ; Brown, James H.

Springer

Evolutionary ecology 12 (1998), S. 767-783

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ISSN: 1573-8477

Keywords: biogeographical distribution ; bird migration ; Europe ; mammal and bird fauna ; North America ; physiological and behavioural constraints

Source: Springer Online Journal Archives 1860-2000

Topics: Biology

Notes: Abstract One could predict that the capacity for travelling great distances might predispose long-distance migratory birds to be good colonists and to exhibit wider geographic distributions than their non-migratory or short-distance migratory relatives or non-volant mammals. This prediction is not supported by the data on avian biogeography. The distributions of species, genera and families of North American and Eurasian birds and mammals are indeed related to migratory status, but long-distance migratory birds exhibit a great deal of biogeographic regionalism. In particular, at all taxonomic levels their distributions tend to be confined to either the Eastern or Western Hemisphere, suggesting that there has been little successful east–west dispersal between North America and Eurasia. Compared to non-migratory birds, short-distance migratory birds and non-volant mammals, long-distance migrants appear to be subject to severe constraints on their physiology, behaviour and ecology, w hich have prevented colonization of distant regions.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1006538414645

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Twenty-million-year relationship between mammalian diversity and primary productivity (2016)

Fritz, Susanne A. ; Eronen, Jussi T. ; Schnitzler, Jan ; [et al.]

National Academy of Sciences

In: PNAS - Proceedings of the National Academy of Sciences of the United States of America. 2016; 113(39): 10908-10913. Published 2016 Sep 12. doi: 10.1073/pnas.1602145113.

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Publication Date: 2016-09-12

Description: At global and regional scales, primary productivity strongly correlates with richness patterns of extant animals across space, suggesting that resource availability and climatic conditions drive patterns of diversity. However, the existence and consistency of such diversity–productivity relationships through geological history is unclear. Here we provide a comprehensive quantitative test of the diversity–productivity relationship for terrestrial large mammals through time across broad temporal and spatial scales. We combine 〉14,000 occurrences for 690 fossil genera through the Neogene (23–1.8 Mya) with regional estimates of primary productivity from fossil plant communities in North America and Europe. We show a significant positive diversity–productivity relationship through the 20-million-year record, providing evidence on unprecedented spatial and temporal scales that this relationship is a general pattern in the ecology and paleo-ecology of our planet. Further, we discover that genus richness today does not match the fossil relationship, suggesting that a combination of human impacts and Pleistocene climate variability has modified the 20-million-year ecological relationship by strongly reducing primary productivity and driving many mammalian species into decline or to extinction.

Print ISSN: 0027-8424

Electronic ISSN: 1091-6490

Topics: Biology , Medicine , Natural Sciences in General

Published by National Academy of Sciences

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Phylogenetic classification of the world’s tropical forests (2018)

Slik, J. W. Ferry ; Franklin, Janet ; Arroyo-Rodríguez, Víctor ; [et al.]

National Academy of Sciences

In: PNAS - Proceedings of the National Academy of Sciences of the United States of America. 2018; 115(8): 1837-1842. Published 2018 Feb 05. doi: 10.1073/pnas.1714977115.

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Publication Date: 2018-02-05

Description: Knowledge about the biogeographic affinities of the world’s tropical forests helps to better understand regional differences in forest structure, diversity, composition, and dynamics. Such understanding will enable anticipation of region-specific responses to global environmental change. Modern phylogenies, in combination with broad coverage of species inventory data, now allow for global biogeographic analyses that take species evolutionary distance into account. Here we present a classification of the world’s tropical forests based on their phylogenetic similarity. We identify five principal floristic regions and their floristic relationships: (i) Indo-Pacific, (ii) Subtropical, (iii) African, (iv) American, and (v) Dry forests. Our results do not support the traditional neo- versus paleotropical forest division but instead separate the combined American and African forests from their Indo-Pacific counterparts. We also find indications for the existence of a global dry forest region, with representatives in America, Africa, Madagascar, and India. Additionally, a northern-hemisphere Subtropical forest region was identified with representatives in Asia and America, providing support for a link between Asian and American northern-hemisphere forests.

Print ISSN: 0027-8424

Electronic ISSN: 1091-6490

Topics: Biology , Medicine , Natural Sciences in General